“Welcome, Visitor. And... I am sorry.”

The story begins as Tachibana Kazuhito returns to the sunlit Advent City. There, he lives an unforgettable life with his lively group of friends.

That is, until they are summoned to the Ruined World—a place where hopes and dreams take shape. To protect themselves, Kazuhito and his friends must turn imagination into strength. A battle of convictions against H.A.Z.E., a superpowered military force, begins.

And as all things melt into one, Eve Bethel awakens from her long slumber.